ulysses went in limp mode, took it to fiat, said it needed the fluid topping up, after 5 litres, did not solve the problem they then said air flow meter was wrong had that changed still in limp mode then they said throttle pedal sensor was coming up as a fault had that done, still in limp mode 800 pounds later, now they are saying they think it is the turbo asking for my permission to look at it, they admitted that the lack of fluid would not put the car in limp mode in the beginning as it will go 10.000 miles on no fluid but they filled it up anyway when it did not go in their for that reason any advice please